Aluminum foil is one of the more perfect packaging materials. It has fully demonstrated its broad application prospects in many fields, such as food packaging, pharmaceutical packaging, air conditioning aluminum foil, battery foil, etc.
Below we list the 11 most common uses of aluminum foil for your reference.
Household aluminum foil
Household aluminum foils are widely used in cooking, freezing, preservation, baking and other industries. In the refrigerator or freezer, aluminum foil can be wrapped directly on food to keep the food from deforming, prevent moisture loss from fish, vegetables, fruits, and dishes, and prevent flavors from leaking or being mixed in.
Since aluminum foil has good and uniform thermal conductivity and heating effect, it can be used in ovens, steamers, etc. to heat directly on the original packaging.
- Alloy: 8011, 8079, 1235
- Temper: O/soft
- Commonly used thickness: 0.007-0.05mm
Medicinal foil
Pharmaceutical aluminum foil has the advantages of non-toxic, corrosion-resistant, impermeable, heat-proof, moisture-proof, light-blocking, and high-temperature sterilizability. It is mainly used for blister packaging of pharmaceutical capsules, tablets, etc., and bag packaging of powder granules and aqueous agents, especially PTP aluminum foil is moisture-proof, easy to carry, safe and hygienic, and is widely used in the international pharmaceutical industry. Medicinal aluminum foil processing plants have relatively high production environment requirements, such as no less than a 100, 000-level purification workshop. Common medicinal foils on the market come in two alloy states. State: O, after cold punching, used for high-end pharmaceutical packaging; State: H18, after coating, used for PTP medicinal aluminum foil,
- Alloy: 8011, 8021, 8079
- Temper: O, H14, H16, H18
- Commonly used thicknesses are: 0.006-0.08mm.
Battery foil
Battery foil is one of the base materials of lithium batteries for new energy vehicles. Generally, the lithium-ion battery industry uses rolled aluminum foil as the positive electrode collector.
- Alloy: 8011, 8021 aluminum foil
- Temper: O, H14, H16, H18, H19, H22, H24
- Thickness: 0.035-0.055mm
Air conditioner foil
Air conditioning foil is a special material for manufacturing heat exchanger fins for air conditioners. The air conditioning foil used in the early days was plain foil. In order to improve the surface properties of the plain foil, an anti-corrosion inorganic coating and a hydrophilic organic coating are applied before forming to form a hydrophilic foil, which is widely used in household industrial air conditioners, refrigeration cabinets, automobile air conditioners and other refrigeration equipment. There is also a hydrophobic foil that makes the surface of the fins hydrophobic to prevent condensation water from adhering. It is mainly used in dryers to improve heating efficiency.
- Alloy: 1100, 3003, 8011
- Temper: O, H14, H16, H22, H26, H24, etc.
- Air conditioning foil thickness: 0.014mm~0.2mm
With the development of technology, air conditioning foils have a trend of further thinning.
Honeycomb aluminum foil
Honeycomb aluminum foil has the advantages of lightweight, high strength, and high rigidity. It is widely used in exterior wall decoration of high-rise buildings. The middle layer of honeycomb aluminum foil contains a large amount of air, which can be soundproof, heat-insulated, waterproof, moisture-proof, and thermal insulation, and does not release harmful gases.
- Alloy: 3004, 3003, 5052 aluminum foil
- Temper: H14, H18, H24
- Commonly used thickness is 0.035-0.08mm
Electronic / capacitor foil
After the aluminum material is processed into foil, the electronic aluminum foil undergoes surface corrosion treatment and re-oxidation treatment and then is wound to make a capacitor.
Electronic aluminum foil refers to plain foil and is a key raw material for the production of aluminum electrolytic capacitors.
Electronic aluminum foil can be divided into high-voltage anode foil, low-voltage anode foil, negative electrode foil, etc. Among them, high- and low-voltage anode foils (formation foils) require more than 99.99% high-purity aluminum.
- Alloy: 1060, 1070, 1100A, 3003 aluminum foil
- Temper: H16, H18
- High voltage anode foil thickness: 0.0065-0.11mm
- Low voltage anode foil is: 0.04-0.1mm
Flexible packaging foil
Flexible packaging is a bag container made of soft composite packaging materials. Different processes such as dry lamination, hot melt lamination, and extrusion lamination are used according to the different uses of flexible packaging. Flexible packaging not only has the functions of moisture-proof and fresh-keeping but also can be printed with various patterns and text, making it an ideal material for modern commercial packaging.
- Alloy:8011, 8021, 8079
- Temper: O
- Commonly used thickness: 0.006-0.02mm
Container aluminum foil
It is used in food utensils such as fast food restaurants, takeout restaurants, high-end hotels, aviation tableware, home kitchens, etc. It has the characteristics of beautiful appearance, easy use, safety and hygiene, and no odor pollution.
- Alloy: 8011 aluminum foil, 3003 aluminum foil, 3004 aluminum foil
- Temper: O, H22, H24
- Thickness: 0.04-0.13mm
Cigarette foil paper
Cigarette aluminum foil is mainly compounded with paper and used as the inner lining paper of cigarette boxes.
Aluminum foil paper used as cigarette lining paper mainly includes calendered aluminum foil paper and aluminized paper.
The surface of the smoke foil is smooth and traceless, the plate shape is flat, there are few pinholes, the cost is relatively low, and the chemical properties are relatively stable.
The cigarette foil lining paper has two main functions:
- To preserve aroma, aluminum foil paper can prevent the smell of cigarettes from dispersing and prevent the smell of cigarettes from corroding other items;
- Anti-mildew. Aluminum foil can block moisture and effectively prevent moisture, thereby preventing cigarettes from becoming moldy in humid environments.
Specification:
- Alloy: 1235, 1145, 8011, 8021, 8079
- Temper: O
- Thickness: 0.006mm - 0.01mm
Cable foil
Cable foil is an aluminum-plastic composite foil that takes advantage of the sealing and shielding properties of aluminum foil and is coated with plastic film on one or both sides. It is used as a shield for cables.
Cable foil requires less oil on the surface, no holes, and high mechanical properties. The overall quality requirements are not high, but the length requirements are extremely strict.
- Alloy: 1235, 1060, 1050, 1100, 8011
- Temper: O, H14, H16, H18, H22, H24
- Thickness: 0.016-0.055
Decorative foil
Decorative foil is a decorative material applied in the form of aluminum-plastic composite, which takes advantage of the characteristics of aluminum foil with good colorability and high light and heat reflectivity. Mainly used for construction, furniture decoration, and some gift box packaging.
It is generally used as a decorative material for the inner walls of buildings and indoor furniture and is also widely used in the facades and interior decoration of commercial institutions.
Decorative foils are thermal, moisture-proof, soundproof, fire-proof, and easy to clean.
- Alloy: 1060, 1050, 1100, 1235, 8011
- Temper: O, H14, H16, H18, H22, H24
- Thickness: 0.01-0.2mm
